Pipe joints or couplings – With means blocking release of holding means – Lock nut or washer
Patent
1995-01-31
1996-05-28
Arola, Dave W.
Pipe joints or couplings
With means blocking release of holding means
Lock nut or washer
2853345, F16L 5500
Patent
active
055204210
ABSTRACT:
A fluid tight flare nut union is described. Flare nut unions are convenient to install in systems, such as refrigeration systems, and are generally reliably fluid tight. Leaks can occur over time, however, due to environmental stress conditions. Deformable ferrules, in combination with compression nut assemblies, either singly, or redundantly, or in counter rotation redundant assembly, secure the flare nut to the fluid transfer tubing in a locking relationship which prevents the loosening of the flare nut-flare connection with subsequent fluid leakage due to these environmental stresses. Enclosing the complete assembly in water proof insulating material, further insures virtually leak proof operation of the improved flare nut union.
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Lennon John
Warren James
Arola Dave W.
Lenwar, Inc.
Quast W. Patrick
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